Type-writer.



' A. c. ROEBUCK.

TYPE WRITER.

APPLICATION FILED APR.25, I914.

Patented Dec. 18, 191? 4 SHEETS-SHEET 1.

A. C. ROEBUCK.

TYPE WRITER.

I I APPLICATION FILED APR. 25, I914. I 1,25%,Q26. Patented. Dec. 18,1917. 4 SHEETS- $HEET 2.

a; @643 b I A. C. ROEBUCK.

TYPE WRITER.

, APPLICATION FILED.APR-. 25. 1914.

Patented Dec. 18, 1917 4 SHEETS-SHEET 3.

fax/6v 2227 A] a Qduca/v G Zoe-[x405 r A. c. RQEBUCK.

TYPE WRITER.

APPLICATION FILED APR.Z5. i914.

1,250,2Q6.. Patented De 18, 1917.

' 4 SHEETS-SHEET 4.

.t la llllelnt ll ALVAH C. ROEBUCK, OF WOODS'DQGK, ILLINQIS, ASSIGNOR TD"ff 001332 30812? 'LYElEEWli-El'tllifit GOMEANY, OF 'WQODSTOCK,ELLINOIS, A COIEIPORATIQN 0F ILLINUES avata -mines.

Specification of Letters Patent. Patentea fill es, it

fipplicatlon filed hpril 25, 1914. Serial 3%. 834,553.

To all whom 2'23 may concern:

Be it known that I, ALvArI C. Ronnnon, a citizen of the United States,residing at Wooclstock, in the county of lvlcllenry and State ofIllinois, have invented certain new and useful Improvements inType-Wifriters, of which the following is a specification.

This invention relates to typewriters, and more particularly to the formand construction of the frame, together with the general construction,location, arrangement and method of assembling of the various parts onthe frame, and the principal object of the invention is to providemachine of this class in which the several parts may be as semblecl onthe parts of the frame with the greatest facility and economy of timeanti a consequent reduction in cost of assembling of the machine as awhole.

A further object of the invention is to provide a machine of the classdescribed in which certain of the parts may be assembled on one or moreparts of the frame and other parts on other parts of tne frameindependently of each other, and the several parts of the frame,together with the parts as selnbled thereon, may be easily and quicklyassembled to form a complete machine.

For the attainment of these ends and the accomplishment of other new anduseful-objects, as will appear, the invention consists in the featuresof novelty in construction, combination and arrangement of the several.parts generally shown in the accompanying drawings and described in thespecification, but more particularly pointed out in the appended claims.

In the drawings, Figure 1 is perspective view of a typewriterconstructed in accordance with the principles of my invention andcomprising a top plate and member of the typewriter but omitting thecarriage and certain other parts; Fig. 2 is a view in perspective of thebase member together with certain parts assembled thereon; Fig. 3 is aview in perspective of the top plate of a frame in an inverted positionwith certain of the elements of the typewriter assembled thereon; andFig. i is a side elevation the machine illustrated in l A typewriterconsists oi a number. of different parts, all of which must be assemblecl, lit accurately and cooperate with other part Many of theelements are simiof the frame, while the top plate is in posh lar andall, or nearly all of the separate parts are in themselves quiteinexpensive, particularly when rnacle in a considerable quantity. Infact, many of he parts are constructed of sheet material, but and formedin particular shapes of the conformation. One of the greatest e penses,therefore, in. the production of a gewriter or other machine of this isexpose of assembling the various parts and in pa, ing them in the propercooperative icla tionship with respect to each other in machines o: isclass it is customary to semhl': a great many of the parts with topplate in p siticn on the frame in l 1 in fact, many 0' the frames aremade of a sectional con l"c"ion. to'it'acili: tate the assembling of theparts.

' In this construction, however, t1 rlili'l a simple two-piece frameconsisting of base member 5 and a top plate ii. The ma chine isassembled by inverting the top plate 'culties are entirely eliminated;by providing and securing to it the several elements which tion on thebase member. They can all he readily seen and conveniently plaoetl intheir proper position in both of the frame inemhers, and then after theparts are in their proper places on both the base member and top plateof the frame, the top plate inverted and placed iii-position. upon theupward extensions of the member and the several connections are inanebetween the several parts either before or after the top plate issecured. in proper posi .on ripen the base member.

Referring more particularly to the drawings, the base, member 5 ispreferably con.

structetl with upward extensions or posts '3 at the corners by meansotwhich the top plate 18 supported anal to which. it is secnrecl bysuitable fastening means 9 A front en.

tension 10.01? the frame forms a guard for the keyboard, and .across-piece ll cons-ti tutes a guide for the key-levers,

Mounted in the base member of the frame are type-bar key-leyers 1S;spacing mechanism comprising a space bar 13 and; a link 13 carriageshift mechanism comprising carriage shift-lie *s 14 and a shift-arm 14carriage shift-key locking mechanism. 15; a tabulator key 16 with a link16; a line lock key 17 Witl'i a link 17; and a back-spacer y 17' with anarm 17.

The top plate 6 comprises a, yoke 18 at the forward edge whichpreferably rests upon the cross-piece 11, and a lateral de- ;pression 19at each. side to permit the free passage of the carriage and carriageshift rail (the former not shown). surface of the yoke 18 preferablyforms a rest for type-barsQO pivoted in a type segment 21 secured to thetop plate 6,

Mounted on or secured to the top plate 6 are many of the Working devicesof the machine; the central portion is cut away and forms a space forthe free movementof the type-bars. Among the other devices mounted uponthe top plate are; the universal. bar comprising a reciprocable framemounted. in a rocker a ribbon Vibrator 24: with an adjusting device 25at the forward. edge of the plate having {JOIlllBCtlOIL with the v1- 1 p-h 11 t -D1 1t01 -01 .aryiu m, ..V pat 0i e ype Writer ribbons containedno ribbon 5 3001926 on the upper side of the plate; tabula'or mechanismdesignated generally by the ref.

erence numeral 2! and comprising a link' 28; ribbon. re erse and feedmechanism comprising a shaft 30, pawls 31 and toothed Wheels eback-spacer mechanism designated generally loy'the reference numeraland. comprising lever 34.; carriage shift mechanism comprising; apivoted shaft and an end plate foaming an abutment 36- secured thereto;line-lock mechanism comprising a link 4-1 and signal bell 38, and acarriage motor 39 comprising a thumb-- screw 40 for tightening thespring of the motor.

When the various or elements of the operating mechanism of the machineare assembled upon their respective parts of the ironic, that is uponthe top plate or -member of the frame, the top plate is inverted andplaced in position on the posts 7 of the base frame member 5. "With thetop plate in this position the cooperating parts on both of the framemembers are in such position that they may be readil and easilyconnected; the slziftn. M? bears against the a utneht 34?; the tabulatorrear end of the key lever 16; the lin release arm 1? a is contothel'i-ie-locar release lever 4-1; the backspacerla connected by meansas of a link. 32 to The upper the letter space lever is connected bymeans of the arm with a bracket on'the universai bar frame 2-2.

in assembling, the type-bar segment 21 IS F 3, and after the top platehas been attached to the base member, the type-bars 20 are connected tothelr corresponding keylevers l2 and pivotally mounted. in the segment:21 in any Well known manner, as by. means of a pivot Wire 4:3.

From this description it will be seen that the parts are readilyassembled both upon the base member and upon the top plate member ininverted position, and after the parts are all secured in position upontheir respective supporting frame part, the top plate is turned u ight,the two frame parts are secured together, and it is necessary only tomake a comparatively few connections to place the machine in operation.The as sembling is all done with the frame membore in their mostadvantageous position so that all the p. ts are easily accessible.

It is to be lerstood that although not all of the parts or a typewriternamed in the description as being assembled upon one part or the otherof the frame, enough of them have been named to Show the prin ciple ofthe invention and the advantage to be gained from this constructionwhereby several of the parts of a mechanism are sembled on one frameelement and coopen atinp; parts on another frame element and the twocooperating parts on the separate frame elements are joined when theframe parts are placed in proper position with re spect to each other,It to be understood, of course, that parts not specifically described inthe specification are or may be connected to the frame. lln general, itmay be said the operating parts are located on one of the frame elementsand the act sting parts on the other frame element, the connection ofthe corresponding operating and actuating parts completing the device asa Whole.

This invention is independent o i specific forms of the several deviceswhich compose the typevl riter, and it is immaterial, therefore, justlWhat construction is can ployed. An operative construction is shownpossible, of course, to vary this construction, Without departing fromthe spirit and scope of the invention. example, a built up frame, thatis, one in which several. frame parts are assembled separately to formtwo piece frame may have the operating and actuating parts separatelyassemlilled on the respective frame parts.

I. in typewriter, the combination With a compr' member and :1:

plate member ace attached to the top plate, shown in memes ed to besecured thereto, of typewriter operating mechanism adapted to be mountedon and secured to the under side of the top plate member and to beassembled thereon when the top plate is independently inverted,actuating means for the operating parts separately mounted and assembledin the base member, and means to connect the corresponding operating andactuating parts, the top plate being inverted and placed in position onthe base member after the operating parts are assembled.

' 2. In a typewriter, the combination With a frame comprising .a basemember and an independent top plate member, of a type-bar segment, typebar key levers mounted in the base member, type-bars connected to thekey levers and pivotally mounted in the type-bar segment, operatingmechanism independently mounted on and supported by the top plate,actuating mechanism for said operating devices independently mount ed inthe base member, means for connecting the corresponding operating andactuating parts when the top plate is placed in position on the basemember, and means for inseparate actuating devices for each of saidmechanisms mounted in the base member,

and means for connecting the cooperating mechanisms and devices when thetop plate is placed in position on the base member.

In testimony whereof I have signed my name to this specification, in thepresence of two'subscribing witnesses, on this 21st day of April A. D.1914:.

- ALVAH C. ROEBUGK.

Witnesses L. E. HoUsHoLnER, J. Z. SWAHLSTEDT.

